Home / 8,502.45-11,721.05-6,140.85

Finding the Fourth Proportional to 8,502.45, 11,721.05 and 6,140.85

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Solution

The fourth proportional to 8,502.45, 11,721.05 and 6,140.85 is: 8,465.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,502.45 : 11,721.05 = 6,140.85 : x
  2. Step 2: Convert to fraction form
    8,502.45/11,721.05 = 6,140.85/x
  3. Step 3: Cross multiply
    8,502.45x = 11,721.05 × 6,140.85
  4. Step 4: Simplify right side
    8,502.45x = 71,977,179.19
  5. Step 5: Solve for x
    x = 71,977,179.19/8,502.45
  6. Step 6: Final answer
    x = 8,465.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.